Heeling-machine



(No Model.) I 3- Sheets-Sheet 1.

- G. W. GLIDDEN.

HEELING MAGHIN'E.

No. 498.513. Patented May 30,1893,

(No Model.) -3 Sheets-Sheet 2.

G. W. GLIDDEN. HBELING MACHINE No. 498,513 PatentedMay so, 1893.

41m I l (No Model.) 3 Sheets-Sheet 3.

'0; WGLID'DEN.

HBBLING MACHINE. N0;- 498,513. Patented May 30, 18.93.

Nrrnn 'rn'rss ATENT FIGE.

CHARLES W. GLIDDEN, OF LYNN, ASSIGNOR TO JAMES WV. BROOKS, TRUSTEE, OF PETERSHAM, MASSACHUSETTS.

- HEELlNG-MACHINE.

SPECIFICATION forming part of Letters Patent No. 498,513, dated May 30, 1893.

Application filed July 23, 1892. Serial No. 441-020. (No model.)

To all whom it may concern:

Be it known that I, CHARLES W. GLIDDEN, of Lynn, county of Essex, State of Massachusetts, have invented an Improvement in Heeling-Machines, of which the following description, in connection with the accompanying drawings, is a specification, like letters on the drawings representing like parts.

This invention has for its object the production of a novel machine by which to compress heel blanks and nail them automatically upon a boot or shoe on a last which may be of wood.

Prior to this invention it has been customary to mount the shoe to be heeled on a shoe carrier, and the heel on a heel-support or nail box, and by a movement of the shoe toward the heel, or the heel toward the shoe, the shoe and heel have been. put in firm contact and the nails have been driven into the heel and into the shoe.

In my attempts to improve this class of machines I have devised means whereby the shoe and lieel are first brought into contact and submitted to a preliminary pressure, or a pressure sufficient to cause the lifts comprising the heel and the sole to be pinched together and laid substantially smooth, and thereafter, and during a defined portion or fraction of the completion of the relative mo-' tions of the shoe-carrier and heel-support, the heel is actually compressed powerfully to consolidate the heel preparatory to driving the nails therein.

My improved machine has been devised in suchlmanner as to automatically effect substantially uniform compression of the stock or heel notwithstanding variations in the height of the various different styles of heels being operated upon by it. To do this the maximum separation of the shoe holder and heel-support is always sufficient to accommodate a heel of the greatest height, and the devices employed to produce the relative change of position of the shoe-holder and heel-sup port to effect a closure of the space between them, are such as to make their first or preliminary movement, to put the shoe and heel firmly in contact, with a certain amount of slip or lost motion, the slip or lost motion bein g greater orless as the heel is lower or higher,

In other words I am as I believe the first to construct a machine for attaching heels to boots and shoes in which a definite compression previous to nailing shall be effected automatically of each and every heel irrespective of its thickness.

One part of my invention consists in a machine for compressing'and attaching heels to boots and shoes it containing the followingv instrumentalities, viz.,a heel-support; a shoeholder; devices substantially as will be described to effect a relative change of movement of said parts to close the space between them with a self-adapting pressure to accommodate the height of the heel and subject the heel and shoe to preliminary pressure, and devices to thereafter insure further relative closing movements of saidparts with a posi- 8o tive pressure to effect a definite compression of the heel, substantially as will be described.

In the machine herein illustrated I have provided novel mechanism for driving the nails to secure the heel to the boot or shoe.

It is a great desideratum in some factories with some classes of work to attach the heel to the boot or shoe while yet on the last upon which it was lasted. These lasts are of wood and when bored in their shanks to be entered by pins of the jack to hold the last with the shoe on it, the resultant pressure due to driving all the nails at once is very great and soon destroys the last. To avoid this loss of lasts I have invented devices whereby the nail drivers are actuated in groups successively during one cycle of motion of the machine such method of driving the nails obviating crushing strains of the wood.

Figure 1, in side elevation and partial section, shows a sufficient portion of a heel compressing and nailing machine with my improvements added to enable my invention to be understood. Fig. 2 is an enlarged vertical section taken through the heel-support to show the nail driving mechanism and some of its co-operating parts. Fig. 3 is a section I of the apparatus Fig. 2 below the dotted line 0c, the dotted line as Fig. 3 showing the section for Fig. 2. Fig. 4 is a section below the dotted line 50 Fig. 1. Fig. 5 is a detail showing the driver actuators. Fig. 6 is a sectional detail showing part of the frame-work and one form of slip-device to be described, together with its co-operative clutch. Fig. 7 is a detail showing in longitudinal section the slip-device and its co-operating clutch, together with co-acting parts; Fig. 7, a detail of the clutch. Figs. 8, 9, and 10, are details of a modified form of my invention.

I have chosen to represent my present improvements as embodied upon or in connection with a machine substantially such as represented in United States Patent No. 415,670, dated November 19, 1889, and I will refer briefly by letter to parts in this my present machine common to the machine described in the said patent, and in so doing I will use the same letters of reference.

- A represents the frame-work; A a power shaft having its bearings therein and provided with a pinion A which engages a toothed gear A normally loose on a cam shaft A.

B represents a toothed gear normally loose on a shaft B having a weighted crank arm B provided with a pin B on which is a block B which enters a slot in a lever 0 the slotlever embracing a pro-' ted upper end of the j ection of a carriage 0 adapted to be slid back and forth upon a track or guide 3 fixed to the frame-work.

In practice, are run continuously, and, as provided for in the said patent, have co-operating with them and between them and their shafts each a clutch device as fully illustrated in the said patent, and of the proper intervals, as fully described in the said patent, the said shafts are rotated for a defi-g nite distance or extent, and are then stopped. In Fig. 1,I have shown but a portion of the;

loose gear A and have cutoff the shaft A within the frame-work and have consequently removed the shouldered hub of the gear A times and order.

The shaft A has upon it a sleeve B provided with an eccentric B embraced by the eccentric strap of a link N jointed at D to a stud connecting the two links D, D of the each of the gears A A, B

construction commonly de-f nominated as the Horton clutch, so that at the rotation of said shaft effecting the ro-. tation of the shafts B and A, in their proper.

toggle connected with the spindle B to lift the slide vertically in the bearings B.

The parts so far described by letter are substantially the same as in the patent referred to, and will be operated in substantially the same succession, so that they need not be herein further described.-

I will now proceed to describe my improvements to be made the subject of this present patent. I have provided the sleeve 13 with a cam a adapted to operate at proper times a lever a pivoted at d said lever, as represented in Fig. 1, having at its upper end a pin or projection 01, to enter or engage the outer end of an arm I) of a clutch device to be de-' scribed. The rod F is co-operatively joined with the shoe holder or jack F by or through, in this instance of my invention, a walking beam F having a pivoted nut F in which is a screw F at the upper end of a sliding spindle F The shoe-holder F and the devices F F F F are as at present in use in the McKay heeling machine, and as shown in the United States Patent No. 374,894, I having chosen to illustrate my invention, to be hereinafter more fully described, as applied to that class of machine. The rod F referred to moves in unison with the shoe-holder, and when the machine is in its normal position the shoe-holder F and the heel-support G are separated for a distance sufficient to enable the shoe-holder to receive the lasted shoe, and the heel-support to receive upon it the heel, whatever may be the height of the latter.

Now, to effect the purposes of my invention as hereinbefore stated, it became necessary for me to, and I have devised means which will now be described, whereby the relative positions of the shoe-holder having the lasted shoe, and the heel-support having the heel, may be changed, in order that the sole part of the heel of the lasted shoe, and the heel-seat of the heel may be brought in firm contact with a limited amount of preliminary pressure, to thus effect, as it were, a sort of calipering of the material, and this done, the 'heel or material between the shoe-holder and the heel support, is subjected to a uniform definiteamount of pressure imparted by a defined or uniform extent of closure of the space between the shoe-holder and the heel-support, wherebya definite amount of compression is given to the material preparatory to driving the nails. The device which enables this movement to be effected has been by me named a slip-device, and in Fig. 1 I have shown one form of slip-device which I will now describe. The slip-device shown in- Figs. 1 and 6, consists of a cam-like contrivance 6 fast to a shaft 6 having its bearings in ears of asuitable stand 6 The hub of this cam contrivance is surrounded by a collar 1) shown separately in Fig. 7, said collar having a series of fingers or projections between which are held a series of rollers b One part of the stand 6 as shown best in Fig. 7 which receives the shaft e, is chambered as best represented in Fig. 6, to receive the fingered end of the collar b and the rollers b the inner walls of the said chamber having, however, aseries of inclined pockets, in which the said rolls may be moved by or through the handle 1), before referred to, attached to the collar b, said handle when moved in the direction of the arrow Fig. 6 cansing the rolls to be put into the narrow ends of the pockets so as to immediately bite upon the hub of the cam contrivance c with sufficient force to actually prevent it from further slipping underthe descending movement, in this instance, of the rod F.

In order to insure the proper amount of slipping movementof the device referred to, and yet keepit under control, Ihave in this instance of my invention employed a rack c pivoted at 0' upon the rod F, it engaging a pinion e fast on the shaft e, and duringthe' relative change of position of the shoe-holder and heel-support, this rack and pinion, by

turning the device 6, enables the slipping or yielding movement to be effective, as when the shoe and heel are being brought together and confined with a preliminary pressure, and

this done, the cam a, byor through the levera moves the arm I) of the clutch device described and fixes the device 6 so that it can no longer slip, and it is while this slipping or yielding of the parts is prevented that the final change of position to effect the final closure of the spacebetween the shoe-holderf heel and sole are brought together an dsub v jected to a preliminary pressure, and it is dur-I ing the time that this preliminary pressure is being effected that the slipping-device by its movement, as stated, permits the shoe-holder to rise, and after, the preliminary pressure has been effected, the slipping being more or less according to the height of the heel, then the device previously permitting the slipping of the parts is positively arrested, so that the shoe-holder can no longer rise, and conse-' quently as the heel-support completes its upward throw, thedefinite pressure to effect the compression of the heel, is effected While I have shown the shoe-supportas the device which has the power applied to it to offeet the relative closure of the space bet-ween it and the shoe-holder, yet this invention is not limited to the application of the power to the said shoe-support, as it might equally well be applied to the shoe-holder, as it is immaterial which of the two devices, the shoe-support or the shoe-holder, yields with relation to the of the spindle B.

other, or slips during the preliminary closure of the space between them, and whichis thereafter positively held or aetuated'to effect a definite compression of the heel. As a modification of this feature of my invention,upon referring to Figs. 8, 9, and 10, it will be seen that the rod F has a projection g which normally rests against a cam device or contrivance g forming part of a slip-device, the said cam device having a hub, as g which is'surrounded by a clutch device g consisting essentially of a ring having a series of fingers with spaces between, substantially as represented in Fig. 7, in which is a series of rollers 9 see Fig. 9, co-operating with a series of inclines as g at theinner sideof a stand or shell 9 the said clutch device having a handle or projection as g which is embraced by a suitable lever, which I have designated by the letter a, as it is the equivalent of the lever designated by that letter in Fig. land will or maybe moved against the projection on the rod F, thus enabling the slipping action to be. effected, as

before described, during the preliminary put ting together of the heel and lasted shoe, and

this done,the clutch device is operated to arrest the slipping and enable the final definite compression of the heel to be effected.

I will now describe more particularly the heel support and the mechanism for driving the nail. The slide or carriage Ofeommon to the patent first referred to, has connected to it a chainf extended over an idle pulley f and about a pulley f loose on the upper end I The pulleyf shown enlarged in Fig. 2, is provided with a series of pawlsfone shown in section Fig. 2, and the other'shown in plan view Fig. 4, said pawls engaging notches atthe inner side of aring'hhaving at its lower end, a series of gear teeth h which engagea pinion 78 fast on a short shaft it provided at its upper end witha second pinion h which engages a toothed gear 7t, shown in section, in Fig. 2, and separately in Fig. 5.'

This toothed gear revolves loosely about the shank m of the heel supportG, said heel-support being in practice a nail-box, or a device having aseriesof nail-holes arranged in proper shape to'receive the nails to go into the heel, said holes also receiving and guiding the nail drivers n. These nail 'drive'rs rest upon see-' tors n arranged side by side about the shank m and within a chamber of a casing-m upon which rests the heel support. The sectors n have their under sides beveled or inclined and the upper side of the ring it is provided with one corresponding cam k so that as the said ring is rotatedthe cam surface of the ring, acting on the cam surface of'the sectors, will elevate the sectors above it, thesaid sectors being elevated in succession during a rotation of the ring, each sector elevating the drivers one or more directly above and resting upon it, said drivers driving the nails through the heel and into the shoe. As stated, the cam ring it is moved only in one direction, but the chainf for actuating the pulley f is a reciprocating chain, and in consequence of this the ring it must be locked during the movement of the chain in one direction, and to efiect this, the said ring has been provided with a series of ratchet teeth 20 which are engaged by a spring-pressed detent 21,in this present invention pivoted upon the head 22 at the upper end of the spindle B. I have provided the lower end of the rod F with ashoe p which rests upon the surface of the slip device, the shoe taking the wear, the shoe being connected to a movable block adjustably mounted in the rod F.

Believing myself to be the first to automatically drive the heel nails in groups and in suc} cession, this invention is not limited to the employment only of the sectors, as said sectors constitute butone form of driver bar; nor is this invention limited to the exact form of device employed for lifting the driving bars or sectors in succession.

I have shown and described the employment of several different forms of what I have denominated slip-devices, but this invention is not limited to the employment of slip-devices of the particular forms shown, as any form of mechanical device which will during a part of the relative change of position of the shoe-holder and heel-support slip or yield to accommodate variations in height or vertical thickness of the heel to be nailed, and thereafter effect for the final closure a positive movement without slip to accomplish a definite compression of the heel,will come within the scope of my invention, and such devices may by skilled mechanics be produced of very different form and appearance, and yet not depart from my invention.

While I have described a novel nail driving mechanism to enable wooden lasts to be used to advantage, yet itwill be understood that the compressing feature applied -to the heel and shoe may be practiced with any usual or suitable form of nail driving mechanism.

Having described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. In a machine for compressing and attaching heels to boots and shoes, the following instrumentalities, viz:a heel-support; a shoe holder; devices substantially as described to effect a relative change of movement of said parts to close the space between them with a self-adapting pressure to accommodate the height of the heel and subject the heel and shoe to preliminary pressure; and automatic devices to thereafter insure further relative closing movement of said parts with a positive pressure to effect a definite compression of the heel, substantially as described.

2. In a heel nailing machine, the combination with a shoe holder, a heel support, and mechanism to move them toward and from each other comprising a rod, a cooperating slip device, and a clutch-device, the latter arresting the slipping of the slip-device to enable the heel to be thereafter subjected to a positive compression, substantially as described.

3. The combination in a machine for compressing and attaching heels, of nail driving mechanism; a heel-support; a shoe-holder; automaticdevices to effect a relative change of movement of said parts to close the space between them with a self-adapting pressure to accommodate the height of the heel and subject the heel and shoe to preliminary pressure; and automatic devices to thereafter insure further relative closing movement of said parts with a positive pressure to effect a definite compression of the heel preparatory to driving the nails to effect the connection of the pressed heel with the shoe, substantially as described.

4. In a heel nailing machine, a heel-support having a vertical movement, and a shoeholder, combined with an automatically operating slip-device whereby the movement of the shoe-holder may bemade substantially in unison with that of the heel-support as the heel and shoe are being brought together with preliminary pressure, and a clutch or locking device to arrest the motion of the slip-device and effect the definite positive compression of the material, as set forth.

5. In a heel nailing machine, a nail-holder or box, a series of drivers, and independent driver-bars, combined with mechanism to act-' uate them to drive the nails in succession, substantially as described.

6. In a heel nailing machine'the following instrumentalities, viz:a shoe-holder,a heelsupport, actuating devices to change the positions of the said holder and support relative each to the other to effect the contact of the heel and shoe to which it is to be applied, said devices including as operative elements, a rod, a slip-device engaging the rod and cooperating therewith while the holder and support are adapting themselves to the height of the heel to be nailed to the shoe, means for operating the slip device; a clutch, and means to cause the clutch device to operate and restrain further slipping of the slip-device during the final definite and positive compression of the heel, substantially as described.

In testimony whereof I have signed my 

